Como se calcula la solubilidad?

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

How many moles of al3+ ions are in 1.25 moles of al2o3